Error in XML deserialization?

Question

C++ / C#

I have an array of strings and another string - structure fields.
You need to save these fields to the file, but in such a way that the data looks convenient in the file in case of emergency.
Decided to serialize them through XML.
It serializes like normal, but deserialization fails - I get an error.
Error in XML file:

public static bool LoadTableFromPath(string path, out TableData tableData)
            {
                tableData = new TableData();
                FileStream fs = null;
                XmlSerializer formatter = new XmlSerializer(typeof(string[]));
                try
                {
                    fs = new FileStream(path, FileMode.Open, FileAccess.Read);
                    tableData.words = new string[100];
                    tableData.words = (string[])formatter.Deserialize(fs);
                    tableData.description = Convert.ToString(formatter.Deserialize(fs));
                    fs.Close();
                }
                catch (Exception exc)
                {
                    Console.WriteLine(">>>" + exc.Message);
                    if (fs != null)
                        fs.Close();
                    PasswordAnalyserFront.state = PasswordAnalyserFront.ConnectState.Inner;
                    return false;
                }
                PasswordAnalyserFront.state = PasswordAnalyserFront.ConnectState.Inner;
                return true;
            }
            public static void SaveTableFromPath(string path, TableData tableData)
            {
                using (FileStream fs = new FileStream(path, FileMode.Create, FileAccess.Write))
                {
                    XmlSerializer formatter = new XmlSerializer(typeof(string[]));
                    formatter.Serialize(fs, tableData.words);
                    formatter = new XmlSerializer(typeof(string));
                    formatter.Serialize(fs, tableData.description);
                }
            }

What is the problem?

Answer 1

What's the problem with creating a serialization class that includes both words and description?
hint: copy xml and in studio Edit-PasteSpecial

<?xml version="1.0" encoding="UTF8"?> 
<FILE>
<WORDS>
<WORD>abcd</WORD>
<WORD>qwe</WORD>
<WORD>fdsa</WORD>
</WORDS>
<DESCRIPTION>this is description</DESCRIPTION>
</FILE>